Concrete Truck Strike Looms, Threatening Housing and Semiconductor Projects

By WOO JOOSEONG Posted : June 7, 2026, 16:03 Updated : June 7, 2026, 16:03
Photo by Yonhap News

 
Concrete truck drivers in the Seoul metropolitan area have announced a full strike starting June 8, raising alarms in the construction industry. This comes on the heels of a recent tower crane strike, compounding labor risks. Concerns are growing that delays will cascade from housing renovation projects to critical national semiconductor construction sites.
 
According to the construction industry, the National Concrete Transport Workers Union recently conducted a strike vote among 7,517 members in the metropolitan area, with 87.8% in favor of the strike. The union is demanding that concrete manufacturers engage in collective bargaining, stating, "The manufacturers will bear all responsibility for the industrial chaos caused by their avoidance of negotiations."
 
Concrete is an essential material in rebar and concrete framework processes, making it virtually irreplaceable. A halt in supply would lead to delays in pouring schedules, causing a domino effect on subsequent construction processes. Many sites have already exhausted their buffer time due to a four-day tower crane strike that began on May 27. If the concrete truck strike coincides, the risks could escalate to unmanageable levels.
 
There are also predictions that the strike will impact the government's housing supply plans. With completion and occupancy schedules likely to be pushed back, construction companies may become hesitant to engage in new projects due to rising costs and declining profitability. According to the Korea Construction Technology Institute, the construction cost index rose to 136.88 in April, a 4.44% increase compared to the same month last year, marking a record high each month since January.
 
Industry experts warn that construction companies are nearing a breaking point. A representative from a mid-sized construction firm stated, "Rising transportation and labor costs are directly reflected in construction expenses, which will ultimately affect selling prices. In a high-risk environment like this, building homes leads to losses." Some reconstruction projects in the metropolitan area have seen no bidders for construction contracts, raising concerns that a prolonged strike could stifle public housing initiatives.
 
The situation is particularly concerning for key semiconductor construction sites, such as Samsung Electronics' Pyeongtaek campus and SK Hynix's Yongin cluster. Delays in semiconductor fabrication facilities incur significantly higher costs than typical construction sites. Reports indicate that concrete transport operators opposed the installation of on-site batching plants at Samsung's Pyeongtaek campus, which aimed to expedite construction timelines. If the strike materializes, the potential damage could be even greater.
 
A representative from a major construction firm noted, "We can make short-term adjustments by altering the sequence of processes at semiconductor facilities, but if the strike continues for an extended period, the situation will change drastically. While there hasn't been a precedent for a prolonged concrete transport strike, recent events have seen multiple strikes occurring simultaneously, so we are closely monitoring the situation."
 
Negotiations are proving difficult. While agreements on transportation cost increases have allowed strikes to be averted in Daejeon and Busan, negotiations in the metropolitan area are stalled due to issues regarding the negotiating parties. A Seoul administrative court is currently reviewing whether transport operators should be recognized as workers under labor law, and concrete manufacturers are refusing to negotiate, arguing that doing so would imply recognition of the union's status.
 
There are also discussions about transport operators potentially demanding direct price negotiations with primary construction companies, especially in light of the recent implementation of the Yellow Envelope Law, which has led to increased demands for negotiations from subcontractor unions. This could complicate the conflict further.
 
A representative from another major construction firm warned, "If both the tower crane and concrete transport operations come to a halt simultaneously, the risks at individual construction sites could become unmanageable."




* This article has been translated by AI.

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